vim-patch:7.4.211

Problem:    ":lu" is an abbreviation for ":lua", but it should be ":lunmap".
            (ZyX)
Solution:   Move "lunmap" to above "lua".

https://code.google.com/p/vim/source/detail?r=e90bef2240c8d187da6e8d8fa5007ec5afc12284
Merge pull request #521 from oni-link/vim-patch-7-4-211

vim-patch:7.4.211